యిటెర్బియం, 00 Yb Pronunciation (ih -TUR-bee -əm Appearance silvery white
Group మూస:Infobox element/symbol-to-group/format Period period 6 Block f-block Electron configuration [Xe ] 4f14 6s2 Electrons per shell 2, 8, 18, 32, 8, 2 Phase at STP solid Melting point 1097 K (824 °C, 1515 °F) Boiling point 1469 K (1196 °C, 2185 °F) Density (near r.t. ) 6.90 g/cm3 when liquid (at m.p. ) 6.21 g/cm3 Heat of fusion 7.66 kJ/mol Heat of vaporization 159 kJ/mol Molar heat capacity 26.74 J/(mol·K) Vapor pressure
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
736
813
910
1047
(1266)
(1465)
Oxidation state s0,[ 3] [ 4] +3 basic oxide) Electronegativity Pauling scale: ? 1.1 Atomic radius empirical: 176 pm Covalent radius 187±8 pm Spectral line s of యిటెర్బియంNatural occurrence primordial Crystal structure face-centered cubic (fcc) Speed of sound thin rod 1590 m/s (at 20 °C) Thermal expansion (r.t. ) (β, poly) 26.3 µm/(m⋅K) Thermal conductivity 38.5 W/(m⋅K) Electrical resistivity (r.t. ) (β, poly) 0.250 µ Ω⋅m Magnetic ordering paramagnetic Young's modulus (β form) 23.9 GPa Shear modulus (β form) 9.9 GPa Bulk modulus (β form) 30.5 GPa Poisson ratio (β form) 0.207 Vickers hardness 206 MPa Brinell hardness 343 MPa CAS Number 7440-64-4 Discovery Jean Charles Galissard de Marignac (1878) First isolation Georges Urbain (1907) Template:infobox యిటెర్బియం isotopes does not exist Category: యిటెర్బియం references
References
These references will appear in the article, but this list appears only on this page.
↑ "Standard Atomic Weights: Ytterbium" . CIAAW . 2015.↑ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)" . Pure and Applied Chemistry (in ఇంగ్లీష్). doi :10.1515/pac-2019-0603 . ISSN 1365-3075 . ↑ Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev . 22 : 17–24. doi :10.1039/CS9932200017 . Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry . 688 (1–2): 49–55. doi :10.1016/j.jorganchem.2003.08.028 .
↑ La(I), Pr(I), Tb(I), Tm(I), and Yb(I) have been observed in MB8 − clusters; see Li, Wan-Lu; Chen, Teng-Teng; Chen, Wei-Jia; Li, Jun; Wang, Lai-Sheng (2021). "Monovalent lanthanide(I) in borozene complexes" . Nature Communications . 12 (1): 6467. doi :10.1038/s41467-021-26785-9 . PMC 8578558 PMID 34753931 .
